- Trump called the Canadian dollar's exchange rate "unacceptable" in a Truth Social post Sunday night, just hours before Canada's new retaliatory tariffs kick in.
- The real head-turner got buried under the currency headline: Washington had already signed an executive order renaming Lake Ontario "Lake America," and Google Maps rolled out the change for U.S. users only.
- Eight in ten Canadians back their government's tariff response, a fresh poll shows, as shoppers on both sides of the border brace for higher prices.
While most of the U.S. was still winding down from the Labor Day weekend, Donald Trump opened a new front in his trade standoff with Canada. What began as a complaint about the Canadian dollar quickly unraveled into a dispute that now stretches well beyond economics, all the way to a fight over what to call a lake the two countries share.
The post that reignited the fight
On the night of Sunday, September 6, Trump wrote on Truth Social that Canada's currency imbalance with the U.S. "is unacceptable" and that "it has been that way for years — but no longer." He gave no hint of what action he had in mind or what exchange rate he'd consider fair. Right now, one U.S. dollar buys roughly 1.38 Canadian dollars, leaving the loonie worth about 72 American cents, a range that has actually held fairly steady since 2015.
Trump went further, claiming the U.S. "lost an average of $60 billion a year" trading with Canada over the past decade. No federal agency has confirmed that figure so far, and it lands barely two weeks after Washington slapped 50% tariffs on roughly $20 billion worth of Canadian goods, from auto parts to dairy, once bilateral talks fell apart on August 21.
The strangest twist: a lake got renamed
Here's the detail most people missed: days before this latest jab, Trump had already signed an executive order renaming Lake Ontario as "Lake America," a move Ottawa reads as one more push against its sovereignty. Google Maps adopted the new name, but only for users browsing from the U.S.; on the Canadian side, the map still reads "Lake Ontario." Ontario Premier Doug Ford fired back with a giant roadside sign near the border reading "Lake Ontario — Now and Always," insisting, per NPR, that Canadians would "never, ever back down from a bully."
Prime Minister Mark Carney didn't mince words describing the negotiation's collapse. Per Fox Business, Carney said Washington demanded, at the last minute, the power to limit Canada's ability to strike trade deals with other countries, on top of tougher terms for the auto sector and rollbacks to cultural and French-language protections. Carney called it "a power play" that turned into "a question of sovereignty," adding that Washington "asked too much, and offered too little."
Canada's payback lands Tuesday
Ottawa isn't sitting still. Carney's government confirmed that starting Tuesday, September 8, dollar-for-dollar retaliatory tariffs take effect on hundreds of American goods, including steel, dairy, appliances, farm equipment, pulp and paper, and electronics — a list that reportedly runs past 700 product categories, according to ABC7.
What Canadians actually think
Public support for Carney's hardline stance is striking. A Nanos Research poll conducted August 30 through September 2, surveying just over a thousand people, found that 80% of Canadians support, to some degree, their government's counter-tariffs, and 85% back the decision to turn down Washington's latest trade offer, CP24 reported. That kind of backing hands Carney rare political room to hold his ground.
Here's the part that should worry any shopper: Trump has already signaled that without a new deal before January 2027, he plans to slap 50% tariffs on all Canadian autos and steel, a move that would hit supply chains the two countries have spent decades weaving together, Yahoo Finance reported. Currency markets are already twitchy — traders in Asia reacted to Trump's post the moment markets reopened after the holiday, bracing for a volatile week once Wall Street and Bay Street are back in full swing.
With Canada's tariffs set to hit within hours and neither side showing signs of backing down, the open question is whether Trump's attack on the Canadian dollar is just leverage ahead of another round of talks, or a preview of harder financial moves against Ottawa. The White House hasn't offered further details yet, and everything suggests September still has more surprises in store for North America's two most intertwined economies.
